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Detached for sale at 181 Ontario Street, Cobourg - 4 bedroom, 3 bathroom - Photo 1 of 49
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$1,875,000

181 Ontario St

Cobourg, ON K9A 3B6

181 Ontario St, Cobourg — Listed at $1,875,000. 4 bedroom, 3 bathroom 2-Storey Detached. MLS® X13415040.

Possession · seller's timeline

Flexible

4Beds
3Baths
3000-3500sqft
Detached
2-Storey
8Parking
$9,307Taxes/yr · 2026

What's this home worth?

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Description

Welcome to 181 Ontario Street, The Sonning House, one of Cobourg's most prominent historic estates. Originally constructed in 1840 by the Burnet Brothers-the legendary builders behind Victoria Hall, during Cobourg's prosperous pre-Confederation boom. Today, this stunning Georgian Revival stands as a pristine landmark of the era, beautifully restored and seamlessly upgraded with modern efficiencies. This home exudes the grandeur of the bygone era, complemented by a glamorous, and stylish aesthetic. You're captivated the moment you step into the stunning central hall plan, with a grand staircase and soaring 10.5-foot main-floor ceilings adorned with intricate plaster crown molding. Generous, light-filled principal rooms flow effortlessly with opulent details. The sumptuous dining room will host the celebrations and elegant dinner parties, inviting you to linger. The heart of the home is a striking, modern kitchen complete with custom cabinetry and an oversized stone island designed for effortless entertaining. Contemporary conveniences include a main-floor laundry room and a mudroom with direct access to a rare 2-car attached garage. Upstairs, the grandeur continues with remarkable 11.5-foot ceilings and four spacious bedrooms. Oversized windows provide generous views and abundant natural light. The elegant primary suite features a walk-in closet and a luxurious ensuite. Positioned on a gracious, oversized corner lot, this property offers unmatched outdoor living space in the heart of town, adorned with magnificent, mature trees and perennial gardens. Expansive decking and an elegant pergola provide the perfect space for dining al fresco, entertaining, or quiet gatherings. The generous south lawn features a charming cottage for garden storage and a beautiful fieldstone fire pit, perfect for cool evening gatherings. Located just steps from Lake Ontario and the West Beach boardwalk, The Sonning House is the perfect blend of historic romance and modern luxury.

Property Details

Property TypeDetached
Style2-Storey
CommunityCobourg
Approximate Age100+
Rooms13
Kitchens1
Washrooms3
Square Feet3000-3500 sqft
Lot Dimensions165.4 × 162.66 ft
Fronting OnWest
Dir/Cross StTweed
Garage TypeAttached
Garage Parking Spaces2
DrivePrivate Double
Parking Drive Spaces6
Total Parking Spaces8
ExteriorBrick, Board & Batten
RoofAsphalt Shingle
FoundationStone
BasementPartially Finished
Fireplace FeaturesOther
Heating TypeRadiant
Heating SourceGas
A/CWindow Unit(s)
SewersSewer
Taxes (2026)$9,307
HSTIncluded In
SecurityAlarm System
Other StructuresGarden Shed
Listed Date6/8/2026
Days on Market128 days
PossessionFlexible

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Listing Courtesy of: RE/MAX Rouge River Realty Ltd.

MLS® #X13415040

TRREBMLS®

The listing data is provided under copyright by the Toronto Regional Real Estate Board (TRREB). The listing data is deemed reliable but is not guaranteed accurate by TRREB. The trademarks REALTOR®, REALTORS®, and the REALTOR® logo are controlled by The Canadian Real Estate Association (CREA) and identify real estate professionals who are members of CREA. The trademarks MLS®, Multiple Listing Service® and the associated logos are owned by CREA and identify the quality of services provided by real estate professionals who are members of CREA. Used under license.

© 2026 Toronto Regional Real Estate Board. All rights reserved.

HouseIndex Take: 181 Ontario Street

This detached (2-Storey) is located in the Cobourg neighbourhood of Cobourg.

The home offers 4 bedrooms, 3 bathrooms.

Features include a partially finished basement, 8 parking spaces including a 2-car garage, a fireplace.

Additional details: lot dimensions of 165.4 × 162.66 feet.

Listed at $1,875,000 CAD with annual property taxes of $9,307 (2026).

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